Every 30 minutes all three steps are run (for now) via the script
https://github.com/Geonovum/sospilot/blob/master/src/rivm-lml/etl-all.sh.
It is best to stop the cronjob whenever doing any
of the resets below. Also be aware that the ETL steps build up history.

Postgres credentials: set these once in the file https://github.com/Geonovum/sospilot/blob/master/src/rivm-lml/pgcreds.sh
for your local Postgres. All scripts will use these values.